18044770 has 8 divisors (see below), whose sum is σ = 32480604. Its totient is φ = 7217904.

The previous prime is 18044753. The next prime is 18044771. The reversal of 18044770 is 7744081.

It can be written as a sum of positive squares in 2 ways, for example, as 17867529 + 177241 = 4227^2 + 421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18044770² = 651227448705800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18044771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902229 + ... + 902248.

Almost surely, 2^18044770 is an apocalyptic number.

18044770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18044770 is a deficient number, since it is larger than the sum of its proper divisors (14435834).

18044770 is a wasteful number, since it uses less digits than its factorization.

18044770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804484.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 18044770 is about 4247.9136055245. The cubic root of 18044770 is about 262.2912384036.

The spelling of 18044770 in words is "eighteen million, forty-four thousand, seven hundred seventy".